Problem 1
The promo {X, : t E R) i band limited with Sx(w) = 0 for pi > w.
Let {X,, : n E Z) he a proems such that E(X,,) = 0 and EPCsXid = 026,a
Find the mean and autocorrelation function
When dealing with two random process
Jointly wss
If T is closed under additional, two process {Xt; t E T) and {K; t E T} that are second order are said to be jointly wide sense stationary if px Wand ity(t) are constant and if Rxy(t + r, t)is independent of t for all r E T. This can be rewritten as